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'N Mod I 6 H. WYMAN 8; A. A. GORDON.

HARNESS, FRAME MOVING DEVICE FOR LOOMS.

No 550088. Patented NOV. 19, 1895.

ANDREW BYGRAHANLPQOTOUTNQWASHINGI'OMDE UNITED STATES PATENT OFFIC HORACEWYMAN AND ALBERT A. GORDON, OF WORCESTER, MASSACHUSETTS, ASSIGNORS TOTHE OROMPTON LOOM WORKS, OF SAME PLACE.

HARNESS-FRAME-MOVING DEVICE FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 550,088, dated November19, 1895.

Application filed February 29, 1892- Serial No. 23,229r (N0 model.)

To all whom it may concern.-

Be it known that we, HORACE WYMAN and ALBERT A. GORDON, of Worcester,county of WVorcester, State of Massachusetts, have invented anImprovement in Harness-Frame- Moving Devices for Looms, of which thefollowing description, in connection with the accompanying drawings, isa specification, like letters and figures on the drawings representinglike parts.

This invention has for its object to simplify and improve that class oflooms in which the harness-frames are moved by a positive motion in butone direction.

Our invention consists in novel means devised by us for moving theharness-frames in a direction opposite that in which they are movedpositively. Mechanism for this purpose as heretofore constructed hasbeen defective in that the connections interposed between theharnessframes and the spring-controlled levers have been so made andattached to the levers in such manner that the connections wear sorapidly when joined to the levers as to entail expense in repairs,besides loss of time, this excessive and rapid wear being due chiefly tothe fact that the connectiontips on the lever at the point of theirjunction, owing to the particular lines of their movement.

lngmr invention the spring-controlled levers are shown as provided withsectors, against which the connections, prefer bly fiat strips, bear,one end of each spring being connected to the end of the lever farthestfrom the sector and also to the frame-piece. In this way we overcome allsidewise or swaying movements of the connections and also reduce thewear on the connections to the minimum.

Heretofore spring-controlled levers have been arranged side by side onthe same fulcrum-rod; but by separating the levers into two sets andmounting them on two fulcrumrods, so that the strap-attaching end of onelever points to the right and the other to the left of a vertical planeat a right angle to the series of harness-frames, we are enabled to gettwo rows of levers in the line occupied by the connections leading tothe harness-frames, and we are enabled by having two rows of levers tomake the harness connections broader than if we used but one row, and byproviding one end of each lever with a sector the connections may besustained on a flat surface during the movements of the levers. Thelevers have notches at their outer ends at different distances fromtheir fulcra to receive the 'buckles or loops to which is attached oneend of the springs used, the adjustment of a buckle or loop into one orthe other of said notches providing for greater or less tension of thesprings. The ends of the springs most remote from the notched ends ofthe levers are connected to a springholding bar, and the frame wherethis bar is located has a series of notches whereby the bar may bequickly adjusted in its position to at one operation vary the tensionsimul taneously of all the springs. The back-stop for the levers is madeas a bar or rod, which occupies a position at an angle to'the fulcrumrodfor the levers, so that the said levers may occupy different positionsin order that the front and back harness-frames may occupy differenthorizontal planes, the back harness-frame or the one farthest from thebreast-beam of the loom having the greater movement. The levers havetheir hubs slotted to be applied to or removed from the fulcrum-rodwithout disturbing the latter, and the strain of the spring is such asto keep the levers seated on their fulcrum-rod.

Figure 1 in side elevation represents a sufficient portion of a loom toillustrate our invention; Fig. 2, a section thereof in the line 413,Fig. 1.

The supporting frame or head A, of any suitable shape to support theworking parts, has two fulcra B B, on which are mounted the slotted hubsof the two series of levers O D, having preferably, as shown,sector-shaped ends 0 D, the said ends being sufficiently wide to receiveagainst their faces the straps or connections 0 D one end of each ofsaid straps being suitably attached, respectively, to one of said leversO D, the means employed being in this instance of our invention theprojections c (1, over which the straps are hooked. The ends of the twoseries of levers are made to face each other, just enough space beingleft to permit the straps C D to come between them, as in Fig. 1, thestraps attached to the levers being attached in alternation to thesuccessive harness-frames. Parts of the sides of the levers may touch,or substantially so, and thus obviate twisting strains.

The outer ends of the lovers C D are notched, as at 2 3, to receive theloops 4. 5, attached by springs (l 7 (fully shown at the left in Fig. 1)to hooks 8 9 of rods or bars 10 12, mounted in notches of the frameA,'and, as shown in Fig. 1, there are a series of bar-holding notches 13ll, in either of which the said bars maybe placed when it is desired toalter at one operation the tension of all the springs. The open slots inthe hubs of the levers to fit the rods B are in such direction that thesprings 6 7 act normally to keep the levers on the said rods, and toenable the levers of the series to be moved over different distances bythe springs when acting to move the harnessframes the stop-rods G G areset at an inclination, as represented, to the fulcru1n-rods B B.

By the employment of the sectors 0 D the straps C D will last for a verylong time, as the wear is hardly appreciable, whereas when a folded loopof the strap at right angles to its thickness the strap will soon be cutor worn. through by the unequal strains and the tendency of the strap torock at its point of connection with the lever, this rocking beingnecessary, owing to the arcs of movement of the levers and straps.

By arranging the lovers in sets of two, one to the right and one to theleft, as described, with the connections from the levers and theharnesses in the middle between the ends, we obtain more room with agiven number of harnesses than heretofore obtained.

The provision of notches for the ends of the lovers and slotting theirhubs and providing for them inclined backstops are of advantage not onlywith sector-ended levers, but also with any well-known levers arrangedeither all on one side or part on one side and part on the other side ofa center line, as shown in the accompanying drawings.

It will be noticed in this ourinvention that the broad sector-likestrap-supporting faces of each pair of levers occupying the samevertical plane have their straps arranged face to face and are leddirectly to one harness-frame, each harness-frame having two strapsconnected to it, and the strain on the straps is a straight strain,which would not be the case if the ends of the levers passed one endbeyond the other, for then the straps would have to be led diagonallyupwardly to the harnessframes.

lVe claim 1. In a loom, a series of harness frames, and

two straps connected to each of said frames,

combined with two levers for each frame, each lever being provided witha sector-like strap supporting end, the ends of the two levers connectedto the same harness frame being directly opposed to and separated onefrom the other for a distance sufficient to receive freely between themboth of said straps, the described construction and location of thelevers of each pair of levers avoiding lateral strains between theharness frames and the said levers, substantially as described. a partor arm of the lever is extended through 2. I11 a loom, a series ofharness frames, and two straps connected to each of said frames,combined with two levers for each frame, each lever being provided witha sector-like strap supporting end, the ends of the two levers connectedto the same harness frame being directly opposed to and separated onefrom the otherfor a distance sufficient to receive freely between themboth of said straps, said levers being pivoted each between its ends andeach being notched at its outer end, and a series of actuating springs,one for each of said levers, said springs being adj ustabl yconneeted tosaid levers, to operate, substantially as described.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

HORACE \VYMAN. ALBERT A. GORDON.

\Vitnesscs:

Jus'rnv .A. WARE, JoHN l Svnn.

